Voltage-Controlled Negative Index in Vertically Coupled Quantum Dot Systems
Abstract
Description
We demonstrate that voltage-controlled negative index can be obtained in self-organized InAs quantum dot systems. As the bias voltage changes, the refractive index can be adjusted and controlled continuously from -7 to 7. Simultaneously, the absorption of light in the system will be very small. The single-negative index materials and the double-negative index materials can be achieved in different bias voltages.
9 pages, 3 figures
9 pages, 3 figures